Blossom drop before even opening

[MiLK_MaN]

I have a Roma Tomato plant in my grow tent, that originally had many flowers but lack of pollination (which I have since solved with my other plants by hand pollinating), but right now, this plant is experiencing blossom drop even before the flowers open.

When I look at the flowers, they seem to be really thin, I'd expect them to be much wider before opening. Anyone seen this before, and have any sort of suggestions?

 

[915river]

All depend on temperature to hight/low, to wet or to much fertilizer or not enough calcium.

 

[MiLK_MaN]

Temperature is not an issue. Doesnt get over 30 degrees centigrade during the day, and doesnt drop under 18 degrees at night.

I just recently moved the plant from hydro in perlite/vermiculite to a mixture of soil and perlite/vermiculite in a 12 inch pot. Before I moved the plant, I reckon I didnt see a single flower being formed. I am at least now seeing flowers showing up, but they aren't opening.

Might leave it for a week before I look at the broken egg shells at the base of the plant trick

 

[gardenkiller]

Might leave it for a week before I look at the broken egg shells at the base of the plant trick

Egg shells take a while to break down, if you are looking for a quick shot of calcium I would use a complete fert.


Oh and courtesy of Willard:
Flower/fruit drop probable causes:

1. Day temp too high >95F
2. Night temp too low